GE Multilin
N60 Network Stability and Synchrophasor Measurement System
7-7
7 COMMANDS AND TARGETS
7.2 TARGETS
7
c) MINOR SELF-TEST ERROR MESSAGES
Most of the minor self-test errors can be disabled. Refer to the settings in the
User-programmable self-tests
section in chap-
ter 5 for additional details.
•
Latched target message
: Yes.
•
Description of problem
: The battery is not functioning.
•
How often the test is performed
: The battery is monitored every five seconds. The error message is displayed after 60
seconds if the problem persists
.
•
What to do
: Replace the battery located in the power supply module (1H or 1L).
•
Latched target message
: No.
•
Description of problem
: Direct input and output settings are configured for a ring, but the connection is not in a ring.
•
How often the test is performed
: Every second
.
•
What to do
: Check direct input and output configuration and wiring.
•
Latched target message
: No.
•
Description of problem
: The N60 has failed to detect the Ethernet switch.
•
How often the test is performed
: Monitored every five seconds. An error is issued after five consecutive failures
.
•
What to do
: Check the N60 device and switch IP configuration settings. Check for incorrect UR port (port 7) settings on
the Ethernet switch. Check the power to the switch.
•
Latched target message
: No.
•
Description of problem
: The Ethernet connection has failed for the specified port.
•
How often the test is performed
: Every five seconds.
•
What to do
: Check the Ethernet port connection on the switch.
•
Latched target message
: No.
•
Description of problem
: A bad IRIG-B input signal has been detected.
•
How often the test is performed
: Monitored whenever an IRIG-B signal is received.
•
What to do
: Ensure the following:
–
The IRIG-B cable is properly connected.
–
Proper cable functionality (that is, check for physical damage or perform a continuity test).
–
The IRIG-B receiver is functioning.
–
Check the input signal level (it may be less than specification).
MAINTENANCE ALERT:
Replace Battery
MAINTENANCE ALERT:
Direct I/O Ring Break
MAINTENANCE ALERT:
ENET MODULE OFFLINE
MAINTENANCE ALERT:
ENET PORT # OFFLINE
MAINTENANCE ALERT:
**Bad IRIG-B Signal**
